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<h1><span class="kind-class">FileUtil</span> class 
    <a href="https://dart.dev/null-safety" class="feature feature-null-safety" title="Supports the null safety language feature.">Null safety</a>
 
</h1></div>

    



    
  <section class="summary offset-anchor" id="constructors">
    <h2>Constructors</h2>

    <dl class="constructor-summary-list">
        <dt id="FileUtil" class="callable">
          <span class="name"><a href="../utils_file_util/FileUtil/FileUtil.html">FileUtil</a></span><span class="signature">()</span>
        </dt>
        <dd>
          
        </dd>
    </dl>
  </section>

    <section class="summary offset-anchor inherited" id="instance-properties">
      <h2>Properties</h2>

      <dl class="properties">
        <dt id="hashCode" class="property inherited">
  <span class="name"><a href="https://api.flutter.dev/flutter/dart-core/Object/hashCode.html">hashCode</a></span>
  <span class="signature">&#8594; <a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a></span> 

</dt>
<dd class="inherited">
  The hash code for this object.
  <div class="features">read-only, inherited</div>

</dd>

        <dt id="runtimeType" class="property inherited">
  <span class="name"><a href="https://api.flutter.dev/flutter/dart-core/Object/runtimeType.html">runtimeType</a></span>
  <span class="signature">&#8594; <a href="https://api.flutter.dev/flutter/dart-core/Type-class.html">Type</a></span> 

</dt>
<dd class="inherited">
  A representation of the runtime type of the object.
  <div class="features">read-only, inherited</div>

</dd>

      </dl>
    </section>

    
  <section
      class="summary offset-anchor inherited"
      id="instance-methods">
    <h2>Methods</h2>
    <dl class="callables">
        <dt id="noSuchMethod" class="callable inherited">
  <span class="name"><a href="https://api.flutter.dev/flutter/dart-core/Object/noSuchMethod.html">noSuchMethod</a></span><span class="signature">(<wbr><span class="parameter" id="noSuchMethod-param-invocation"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/Invocation-class.html">Invocation</a></span> <span class="parameter-name">invocation</span></span>)
    <span class="returntype parameter">&#8594; dynamic</span>
  </span>
  

</dt>
<dd class="inherited">
  Invoked when a non-existent method or property is accessed.
  <div class="features">inherited</div>

</dd>

        <dt id="toString" class="callable inherited">
  <span class="name"><a href="https://api.flutter.dev/flutter/dart-core/Object/toString.html">toString</a></span><span class="signature">(<wbr>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span>
  </span>
  

</dt>
<dd class="inherited">
  A string representation of this object.
  <div class="features">inherited</div>

</dd>

    </dl>
  </section>
    
  <section
      class="summary offset-anchor inherited"
      id="operators">
    <h2>Operators</h2>
    <dl class="callables">
        <dt id="operator ==" class="callable inherited">
  <span class="name"><a href="https://api.flutter.dev/flutter/dart-core/Object/operator_equals.html">operator ==</a></span><span class="signature">(<wbr><span class="parameter" id="==-param-other"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/Object-class.html">Object</a></span> <span class="parameter-name">other</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-core/bool-class.html">bool</a></span>
  </span>
  

</dt>
<dd class="inherited">
  The equality operator.
  <div class="features">inherited</div>

</dd>

    </dl>
  </section>
    
    
  <section class="summary offset-anchor" id="static-methods">
    <h2>Static Methods</h2>
    <dl class="callables">
        <dt id="appendText" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/appendText.html">appendText</a></span><span class="signature">(<wbr><span class="parameter" id="appendText-param-filePath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">filePath</span>, </span><span class="parameter" id="appendText-param-content"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">content</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  追加写入
  

</dd>

        <dt id="copyDirectory" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/copyDirectory.html">copyDirectory</a></span><span class="signature">(<wbr><span class="parameter" id="copyDirectory-param-sourceDirPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">sourceDirPath</span>, </span><span class="parameter" id="copyDirectory-param-destinationDirPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">destinationDirPath</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  递归复制目录及其内容
  

</dd>

        <dt id="copyFile" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/copyFile.html">copyFile</a></span><span class="signature">(<wbr><span class="parameter" id="copyFile-param-sourcePath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">sourcePath</span>, </span><span class="parameter" id="copyFile-param-destinationPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">destinationPath</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  复制单个文件
  

</dd>

        <dt id="deleteDirectory" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/deleteDirectory.html">deleteDirectory</a></span><span class="signature">(<wbr><span class="parameter" id="deleteDirectory-param-directoryPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">directoryPath</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  递归删除
  

</dd>

        <dt id="deleteDirectoryRecursively" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/deleteDirectoryRecursively.html">deleteDirectoryRecursively</a></span><span class="signature">(<wbr><span class="parameter" id="deleteDirectoryRecursively-param-directoryPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">directoryPath</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  递归删除非空目录
  

</dd>

        <dt id="deleteEmptyDirectory" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/deleteEmptyDirectory.html">deleteEmptyDirectory</a></span><span class="signature">(<wbr><span class="parameter" id="deleteEmptyDirectory-param-directoryPath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">directoryPath</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  删除空目录
  

</dd>

        <dt id="writeText" class="callable">
  <span class="name"><a href="../utils_file_util/FileUtil/writeText.html">writeText</a></span><span class="signature">(<wbr><span class="parameter" id="writeText-param-filePath"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">filePath</span>, </span><span class="parameter" id="writeText-param-content"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span> <span class="parameter-name">content</span></span>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-async/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter">void</span>&gt;</span></span>
  </span>
  

</dt>
<dd>
  覆盖写入
  

</dd>

    </dl>
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